(#23974) asyncpp: add new library to conan

* add asyncpp recipe

* Clean recipe up, improve cmake handling

* Fix newline at EOF

* update minimum required compiler versions for tested compilers

* remove unnecessary file operations

* use asyncpp::asyncpp as conan target name

* Fix shared libraries in test package

* Fix shared windows libs, add missing pthread

* use library version updated to shared library mode

---------

Co-authored-by: Rubén Rincón Blanco <git@rinconblanco.es>

recipes/asyncpp/all/conandata.yml

@@ -0,0 +1,4 @@
+sources:
+  "0.2.4":
+    url: "https://github.com/petiaccja/asyncpp/archive/refs/tags/v0.2.4.tar.gz"
+    sha256: "58138FF5801D3A547EAAD9ADC2C30FE7A0D506C0E41DC56071CEAAD5747210B5"

recipes/asyncpp/all/conanfile.py

@@ -0,0 +1,102 @@
+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.build import check_min_cppstd
+from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
+from conan.tools.env import VirtualBuildEnv
+from conan.tools.files import copy, get, rm, rmdir
+from conan.tools.scm import Version
+import os
+
+
+required_conan_version = ">=1.53.0"
+
+
+class AsyncppRecipe(ConanFile):
+    name = "asyncpp"
+    description = "A C++20 coroutine library for asynchronous and parallel programming."
+    license = "MIT"
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/project/package"
+    topics = ("coroutine", "c++20", "async", "parallel", "concurrency")
+
+    package_type = "library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+    }
+
+    @property
+    def _min_cppstd(self):
+        return 20
+
+    @property
+    def _compilers_minimum_version(self):
+        return {
+            "gcc": "13",
+            "clang": "17",
+            "msvc": "193",
+            "Visual Studio": "17",
+        }
+
+    def config_options(self):
+        if self.settings.os == "Windows":
+            del self.options.fPIC
+
+    def configure(self):
+        if self.options.shared:
+            self.options.rm_safe("fPIC")
+
+    def layout(self):
+        # src_folder must use the same source folder name the project
+        cmake_layout(self, src_folder="src")
+
+    def validate(self):
+        # validate the minimum cpp standard supported. For C++ projects only
+        if self.settings.compiler.cppstd:
+            check_min_cppstd(self, self._min_cppstd)
+        minimum_version = self._compilers_minimum_version.get(str(self.settings.compiler), False)
+        if minimum_version and Version(self.settings.compiler.version) < minimum_version:
+            raise ConanInvalidConfiguration(
+                f"{self.ref} requires C++{self._min_cppstd}, which your compiler does not support."
+            )
+
+        if self.settings.compiler == "apple-clang":
+            # As per https://en.cppreference.com/w/cpp/compiler_support, apple-clang 14.0.0 partially supports C++20 but not jthread
+            raise ConanInvalidConfiguration(f"{self.ref} does not support apple-clang compiler, as it lacks jthread support.")
+
+    def build_requirements(self):
+        self.tool_requires("cmake/[>=3.25 <4]")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def generate(self):
+        tc = CMakeToolchain(self)
+        tc.variables["ASYNCPP_BUILD_TESTS"] = "OFF"
+        tc.variables["ASYNCPP_BUILD_BENCHMARKS"] = "OFF"
+        tc.generate()
+        venv = VirtualBuildEnv(self)
+        venv.generate()
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def package(self):
+        copy(self, "LICENSE.md", self.source_folder, os.path.join(self.package_folder, "licenses"))
+        cmake = CMake(self)
+        cmake.install()
+
+    def package_info(self):
+        self.cpp_info.libs = ["asyncpp"]
+        if self.settings.os == "Windows" and self.options.shared:
+            self.cpp_info.bindirs = ["libs"]
+
+        if self.settings.os in ("Linux", "FreeBSD"):
+            self.cpp_info.system_libs = ["pthread"]

recipes/asyncpp/all/test_package/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.15)
+project(TestPackage CXX)
+
+add_executable(test_package test_package.cpp)
+
+find_package(asyncpp CONFIG REQUIRED)
+target_link_libraries(test_package asyncpp::asyncpp)
+target_compile_features(test_package PUBLIC cxx_std_20)

recipes/asyncpp/all/test_package/conanfile.py

@@ -0,0 +1,26 @@
+import os
+
+from conan import ConanFile
+from conan.tools.cmake import CMake, cmake_layout
+from conan.tools.build import can_run
+
+
+class AsyncppTestConan(ConanFile):
+    settings = "os", "compiler", "build_type", "arch"
+    generators = "CMakeDeps", "CMakeToolchain", "VirtualRunEnv"
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def layout(self):
+        cmake_layout(self)
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindir, "test_package")
+            self.run(bin_path, env="conanrun")

recipes/asyncpp/all/test_package/test_package.cpp

@@ -0,0 +1,18 @@
+#include <asyncpp/task.hpp>
+#include <asyncpp/join.hpp>
+
+#include <iostream>
+#include <string>
+
+using namespace asyncpp;
+
+
+task<std::string> message() {
+    co_return std::string("async++ installation works.");
+}
+
+
+int main() {
+	std::cout << join(message()) << std::endl;
+	return 0;
+}

recipes/asyncpp/config.yml

@@ -0,0 +1,3 @@
+versions:
+  "0.2.4":
+    folder: all